超声波测距程序

6N137 高速光耦隔离芯片 应用于各种需要隔离场合(6N137 optocoupler isolated high-speed chips in a variety of situations need to be isolated)

现代信号处理中谱估计在matlab中的使用，音频信号通过LM386放大，模拟数据分析处理的过程。( Modern signal processing used in the spectral estimation in matlab, LM386 audio signal amplification, Analog data analysis processing.)

数字图像处理应用程序，包括灰度化，点运算等(Digital image processing applications, including graying, point operations, etc.)

本例是基于STM32F407完成对。本代码主要完成MP3播放，界面显示等功能，还可在此基础上外扩点阵屏实现LED显示功能！(This case is based on the completion of the STM32F407. The code is mainly to complete MP3 playback, interface display and other functions, can also be based on the expansion of LED dot matrix screen display function!)

STC12C5A60S2单片机驱动4位共阴数码管动态的显示的电子钟。包含具体的制作步骤和源代码( A STC12C5A60S2 driven by the four common cathode LED electronic clock.)

说明：  用于接收FG飞行数据，并且能够实时显示接收数据(Receiving FG flight data)

burg（伯格）法谱估计,是现代功率谱估计的一种典型的算法.(burg (Berg) Act, spectral estimation, is a typical modern power spectrum estimation algorithm.)

opengl 实现太阳系的模拟 地球自转和公转(opengl sun earth moon)

while(1) {//if(keyenable==1){P1=0x00 P2=0xff }else{P1=0xff P2=0x00 } for(i=3 i<SNAKE+1 i++)x[i]=100 for(i=3 i<SNAKE+1 i++)y[i]=100 //初始化 x[0]=4 y[0]=4 //果子 n=3 //蛇长 n=-1 x[1]=1 y[1]=0 //蛇头 x[2]=0 y[2]=0 //蛇尾1 addx=0 addy=0 //位移偏移 //k=1 while(1){if(keyenable)break timer0(1) } while(1) {timer0(e) if(knock()){e=SPEED break } //判断碰撞 if((x[0]==x[1]+addx)&(y[0]==y[1]+addy)) //是否吃东西

7281读写C51源程序（键盘与显示），及其相关资料，偶强两天调出来的 与大家共享(7281 to read and write source code C51 (keyboard and display), and related information, even strong two days out of tune with the U.S. share)